W. Va. Code § 7-14D-5
(a) Any deputy sheriff first employed by a county in covered employment after the effective date of this article shall be a member of this retirement system and does not qualify for membership in any other retirement system administered by the board, so long as he or she remains employed in covered employment: Provided, That any deputy sheriff who has concurrent employment in an additional job or jobs which would require the deputy sheriff to be a member of the West Virginia Municipal Police Officers and Firefighters Retirement System, the West Virginia Emergency Medical Services Retirement System or the West Virginia Natural Resources Police Officers Retirement System shall participate in only one retirement system administered by the board, and the retirement system applicable to the concurrent employment for which the employee has the earliest date of hire shall prevail. The membership of any person in the plan ceases:
(d) Any deputy sheriff who was employed as a deputy sheriff prior to the effective date of this article, but was not employed as a deputy sheriff on the effective date of this article, shall become a member upon rehire as a deputy sheriff. For purposes of this subsection, the member’s years of service and credited service in the Public Employees Retirement System prior to the effective date of this article shall not be counted for any purposes under this plan unless: